Barbie has long been criticized for her unattainable body proportions.

"Rather than criticizing her, we should make a proof of concept to show that a doll can actually look good if she were a normal woman," Lamm told USA TODAY Network.

Lammily has the body proportions of an average 19-year-old woman based on data from the Centers for Disease Control.

Lamm offers several versions of the first-edition Lammily. In one she wears a button-down shirt and denim shorts. In another, she wears a sports bra and running shorts. Lammily will have bendable elbows, wrists, knees and feet, Lamm said.